Instruction Manual - DECA | Diving Equipment Company of America

INSTALLATION & OPERATION
OPTIONS 6.11
WIRELESS TENDER OPTION MODEL /28FDW
This option is installed in the right hand section of the panel. Amron’s Full Duplex (Simulcom)
Wireless Tender is designed for the top-side tender to communicate to divers with hands-free
operation and no required buttons to push. This wireless unit allows mobility for the tender while
checking equipment and still maintaining constant contact with the divers. This Option can also be
used in the two wire mode to monitor the diver conversations, but not to talk to the diver.
The Wireless system comes standard with 40 channel combinations which gives the ability to use
up to 40 different radios set at different channels in close proximity without cross-frequency
problems. Additional 2829-01 Wireless Headset and Transceiver Kits can be purchased for use
with the Amcom as standby “listen only” devices, as only one headset on the system can have
listen and talk priority to the divers. The design allows the capability to add an unlimited number of
remote listen only headsets for topside personnel. The units operate on the FM band at 902-928
MHz up to a range of ¼ mile. There is no requirement for FCC approval because the RF Power is
only 200mW and transmitter output 50mV/m (FCC part 15).
The remote unit (transmitter/receiver) is housed in a rugged plastic casing that can be clipped to a
belt or slipped into a pocket. A single charge of the NiCad battery from the included AC adapter is
capable of operating (transmitting and receiving) continually for up to 5 hours. In standby mode,
battery will last for up to 8 hours. The standard headset is a tough over-the-ear single ear muff
design with adjustable boom microphone.
Operation of the unit is automatic; speaking into the remote unit transmits a RF signal to the diver.
Diver speaking activates the option, causing it to transmit a RF signal to the remote tender.
Because of the duplex operation the transmission occur in both directions at the same time.
In addition to the remote unit, there is a master transceiver inside the communicator. Both channel
selector switch (A&B) and dipswitches (located under the battery) accommodate 40 different
channels with operating frequency range 902-928MHz. Manufacture sets both wireless
communicator and wireless remote module to work on Channel A with dip-switches setting
1,1,1,1,0,0,0,0 (1 is ON). In order to change channel of operation, it is required to apply changes
to both units (communicator and remote). Manufacture recommends changing wireless channels
to be done by technician.
IMPORTANT: When the wireless option is not used, turn the option panel switch to “OFF”. When
option panel switch is turned “ON”, the wireless remote should be “ON”. Otherwise a static noise
may be heard through the communicator’s panel speaker as it scans for the available Remote
Wireless Tender.
OPERTATION: Turn option power switch to ON, turn remote unit ON/OFF Volume to ON, set
remote unit to Talk Mode (Talk Button is DOWN) and Channel A (Channel Button is UP), and plug
headset to remote unit.
At the remote unit, confirm that Battery Indicator (located next to ON/OFF Volume) should be OFF,
as indication that battery is good. Also confirm that Channel A Indicator is ON (Yellow).
When battery drains below operation level, Battery Indicator turns ON (RED); communication
becomes noisy and will cut out.
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